Web gage and detector.



C. W. NEWELL.

WEB GAGE AND DETECTOR.

APPLICATION FILED JULY 28,1914.

Patented Mar. 13, 1917.

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C. W. NEWELL.

WEB GAGE AND DETECTOR.

APPLICATION FILED JULY 28.1914.

1,219,345. Patented Mar. 13, 1917.

2 SHEETS-SHEET 2.

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lNl/E TOR CLINTON WILLIAM NEWELL, 0F PORTLAND, OREGON.

WEB GAGE AND DETECTOR.

Specification of Letters Patent.

Patented Mar. 13, 1917.

Application filed m '28, 1914. Serial No. 853,626.

To all whom it may concern Be it known that I, CLINTONAWILLIAM NEWELL, acitizen of the United States, and a resident of Portland, in the countyof Multnomah and State of Oregon, have invented a certain new and usefulImprovement in Web Gages and Detectors, of which the following is aspecification.

My invention relates more particularly to an instrument by means ofwhich the width of web, either bagging, cloth, paper or other materialmay be gaged or regulated as it comes from the calender, mangle orfinishing machine.

My present invention comprises an instrument so arranged and soelectrically connected with convenient electric alarms as to warn theoperator should the web be finishing too wide or too narrow, theinstrument being so sustained as to swing with or follow the web freelyin its lateral movements.

The instrument may be connected with an electro-magnet so as to draw aplate, roller or other suitable part against a fixed fountain pen orother marking device, marking the margin of the web in case of its beingfinished too narrow for the purposes required.

The invention is embodied in the instrument illustrated by theaccompanying drawings in which Figure l is a side elevation of theinstrument showing the wiring of the gongs and marking device indiagram, Fig. 2 is a plan view of the guide to guide the web; Fig. 3 isa plan view of the electromagnet and marking device in combination withguide shown in Fig. 2; Fig. 4 is a view of the instrument at that end onthe right of the instrument as shown in Fig. 1; Fig. 5 shows theinstrument in its operating position in relation to the web; and Fig. 6indicates an example of a five roll calender or finishing machine withthe instrument in operating position in relation to said machine.

In the arrangement shown the bar or frame 1 of the instrument iscomposed of aluminum or other suitable material and is of a lengthsufficient to accommodate web of the extreme width capable of beingfinished by the calender or finishing machine; it is a conductor ofelectricity and is connected by a wire 30 with an electric battery orother source of current 31. The bar or frame 1 is sustained by wires 1616 or other flexible means to allow the instrument to swing with orfollow the web freely in its lateral movements. Attached firmly to oneend of the bar or frame 1 is a bracket 2. This bracket 2 is anon-conductor composed of wood fiber or other suitable material andcarries electric contact points 3 and 4 connected respectively by wires32 and 33 with gongs 3 1 and 35, each of said gongs having a differenttone. Wiring 36 leads from the two gongs back to the source 31.

A lever 6, composed of aluminum or other suitable material capable ofconducting electricity, is supported by and connected by the pivot pin7, with the bar or frame 1. The lower end of said lever 6 is forked asshown in Fig. 4 and is designed to engage and rest against the edge ofthe web, while the upper end is between the two contact points 3 and 4.The upper end of lever 6 is furnished with a weight and set screw 8 bywhich the lever may be delicately adjusted.

In operation the web 19 passes from the roll of unfinished web 20 (Fig.6); thence through the rollers 21 of the calender, passing over theroller 22, thence through the instrument to the roll of finished web 24.The direction of the movement of the web is indicated by the arrowsshown in Figs. 5 and 6. The instrument being light swings with andreadily follows the lateral movements of the web as it passes over theroller 22.

When the web is too narrow, the lever 6 makes contact with contact point4, thus completing the circuit of the gong 35 which rings and warns theoperator.

When the web is too wide, the lever 6 makes contact with contact point 3and completes the circuit of the gong 34 thereby sounding the latter.

Another lever 9 is supported by and connected, by means of the pivot pin10, with the bar or frame 1. The lower end of lever 9 is forked andengages and rests against the edge of the web, while the upper end orarm is so arranged and balanced, by means of the weight and set-screw 11on angular arm 11* that should the web run excessively narrow, contactwill be made with the contact point 5 which is connected by wire 37 withthe eleotro-magnet 12. Another wire 38 leads from this magnet to thesource 31. On contact being made-*the circuit will be closed and theelectro-magnet 12 and marking device 13 will be put in operation, theplate 14 being drawn by the magnet against the web, pressing the webagainst the pen 13' or other ink or color supply. Plate 14: is carriedby an armature 1a which is attracted by a magnet 12. The markings somade will indicate at a glance such portions of the web as may be toonarrow for the purposes required.

No contact can be made with contact point 5 until aftercontact has beenmade with contact point 4. v

The movable U-shaped guide 15 is to guide the web and is attached to thebar or frame it by means of a slide 15 on said bar or frame so as toslide along .the bar, said slide having a set screw 15 whereby it may befastened at any point to accommodate different widths of web, the guidebeing adjusted to the desired width of the web. To aid such adjustment ameasuring scale may be used on the bar 'or frame 1.

. In adjusting the instrument, one edge of lower part of the lever 6will cause the upper part of the lever 6 to assume a position v midwaybetween contact points 3 and 4 and, the same pressure being exercisedagainst the lower part of lever 9,'contact is avoided with contact point5.

Particular emphasis is laid upon the mounting of the bar or frame member1 since by this mounting said bar or member is permitted to move freelywith the web as the latter ripples in its travel, a considerable amountof this rippling taking place as the web is wound from one roller ontoanother.

Now, having described my invention, what I claim and desire to secure byLetters Pat- 'ent is 1. A width variation detecting instrument for usein connection with traveling webs comprising a member to engage the edgeof the web and be moved by inaccuracies thereof, and means for markingthe web at the inferior points when said member encounters inaccuraciesin said edge.

2. A width variation detecting instrument for use in connection withtraveling webs comprising a member to engage the edge of the web and bemoved by inaccuracies thereof, and means for giving warning in case saidmember moves excessively inward or excessively outward due toinaccuracies in said edge of the web.

3. A. width variation detecting instrument for use in connection withtraveling webs comprising a support, a member mounted pivotally thereonand movable in opposite directions, said member being adapted to engagethe edge of the web, and means for giving warning in case said membermoves excessively in either direction due in opposite directions andhaving a metallic portion, a pair of contacts between which saidmetallic portion normally moves idly, said portion being adapted tostrike one contact or the other to complete an electric circuit in casethe aforesaid member is moved excessively in one direction or the otherby inaccuracies in the edge of the web. 1

6. A width variation detecting instrument for use in connection withtraveling webs comprising a substantially balanced lever one end ofwhich is adapted to engage the edge of the web and be moved byinaccuracies thereof, said lever having a metallic portion, and a pairof relatively fixed contacts between which said portion normally movesidly, said portion being adapted to engage one or the other of saidcontacts to complete an electric circuit when the lever movesexcessively in either direction, due to inaccuracies in said edge of theweb.

7. An instrument for automatically detecting variations in the width ofa traveling web, and means for sustaining said instrument to allow it tomove freely with the web as said web ripples during its travel.

8. An instrument for automatically detecting variations in the width ofa traveling web including a frame member on which the detecting means ismounted and means for mounting said frame to allow it to move freelywith the web as said web ripples during its travel.

9. An instrument for automatically oletecting variations in the width ofa traveling web including a frame member, and means for suspending suchframe member to move freely with the web as said web ripples during itstravel.

10. An instrument for detecting varia tions in .the width of a travelinweb including an elongated frame mem er to extend transversely of theweb, a support above said frame member, suspending members to the lowerends of which the ends of said frame member are secured, said susber fordetecting variations in the Width of the web.

11. An instrument for detecting variations in the width of a travelingweb comprising an elongated frame member to extend transversely of theweb, a relatively fixed guide on said frame member to receive one edgeof the web, and a movable detecting member likewise carried by saidframe member to engage the opposite edge of said web and be moved in theplane of said web by inaccuracies thereof.

12.-An instrument for detecting variations in the width of a travelingweb comprising a member to engage the edge of the web and be moved byinaccuracies thereof,

means for giving warning in case said member moves excessively due toinaccuracies in the edge of the Web, a second member adapted to engagethe edge of the web and to move beyond the aforesaid member in case aportion of said web is excessively narrow a marking device adjacent theweb, anc means operable by the movement of said second member foroperating said marking device.

13. An instrument for detecting variations in the width of a travelinweb comprising a substantially balanced lever one of Whose ends isadapted to engage the edge of the web and be moved by inaccuraciesthereof, a pair of contacts between which said lever normally travelsidly, said contacts being adapted to be engaged by said lever tocomplete an electric circuit and give warning When said lever movesexcessively in either direction, a second substantially balanced leveralso having an end adapted to engage the ed e of the web and capable ofmoving beyond the web engaging end of the first named lever in case theweb runs excessively narrow, an electrically operated marking deviceadjacent the web, and an additional contact against which a portion ofthe second lever is adapted to bear to operate said marking device, whensaid second lever moves beyond the other lever.

In testimony whereof I have hereunto subscribed my name in the presenceof two witnesses.

CLINTON WILLIAM NEWELL.

WVitnesses:

LAWRENCE C. PHILLIPS, L. D. ,BOSLEY.

